Still the primary issue exists even in the attached example.

I assume Infragistic's was using Microsoft's "Month Calendar" control in Infragistic's UltrDateTimeEditor control.
What verion on Microsoft's "Month Calendar" control was Infragistics using?

If Microsoft has fixed the issue, can infragistics Update the UltraDateTimeEditor to use the latest microsoft's calendar or
tell me how can I replace the UltraDateTimeEditor's calender portion with Microsoft's calendar?

Thank you.

The Previous/Next button on the dropdown works normal on both Infragistics UltraDateTimeEditor and Microsofts DateTimePicker controls when opened from citrix or without citrix.

But the problem looks like on the "month, year" text seen on the header portion on the dropdown, on Infragistics UltraDateTimeEditor.

Note: "month, year" I mean is the control area with text displayed as "December, 2015", between the Previous and Next arrow, on the screen shot attached on my initial post.

Microsoft's DateTimePicker don't change the date or time part when clicking on the "month, year" text seen on the header portion of the dropdown with citrix or without citrix.

But Infagistic's UltraDateTimeEditor changes the date and time part when clicking on the "month, year" text seen on the header portion on the dropdown with citrix. This issue is seen when opening via citrix only.

For UltraDateTimeEditor, the mask I have set is "{date} hh:mm:ss", which shows the time part in 24hrs format.

For DateTimePicker, the CustomFormat property I have set is "dd/MM/yyyy HH:mm:ss", which shows the time part in 24hrs format and I have set the Format property to "Custom".

Thank you.

The UltraDateTimeEditor ver is infragistics4 v13.2 for winforms.

My .net framework version is 4.5

In non-citrix environment everything is working normal.

But in citrix environment, when I click on the next/back arrow or on the month text in the middle of the dropdown header, then only the date is getting updated in the textbox portion of the UltraDateTimeEditor.

Usually in non citrix environment, the texbox portion won't update in like that in the above case.